The graphics in
Shadoan are cel animation, but they are of the low-quality that you get on the low-budget Saturday morning cartoons. The characters are blurry and indistinct, and the effects are the typical “light-show” flash and bang. Pretty poor, actually.
The voice-acting is passable, and of the same quality -- you get the good ones and the whiny ones. The in-game sound effects are similarly low-quality.